The Heilongjiang River, the Sino-Russian boundary river, runs across the northern part of north China. Its headstream includes the northern source and the southern source. The northern source Shilka River originates from the eastern foothills of the Mount Kent in the Outer Mongolia, and the southern source Argun River originates from the western slope of China's Great Hinggan Mountains. After the convergence of the southern source and the northern source at the Xiluoguhe Village, Mohe City, China, the river is called as the Heilongjiang River that runs eastwardly and finally empties into the Sea of Okhotsk. The Heilongjiang River flows across China, Russia and the Outer Mongolia. Its entire length is 5498 kilometers, the 11th largest river in the world. Its drainage area is up to 1,843,000 square kilometers, ranking the 10th largest in the world. The drainage area within China accounts for 48% of the total drainage area.
360-degree panorama photography by yunzeng liu